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Checking Out

When you are ready to make your purchase, place your mouse over your Cart at the top of the page and click Checkout. Our checkout process is quick, easy and secure. Just follow these steps to place your order.

For Registered Users – If you are a returning customer and have an account at theory.com, please sign in using your email address and password. You will then be taken directly to the first Checkout page.

For Non-Registered Users – If you are not registered for an account at theory.com, you may proceed to the first Checkout page without an account or you can create an account.